# NMEASail

> Marine navigation dashboard for yachts, displaying real-time NMEA and SignalK data. (iPhone/iPad app by Sven Wilrodt.)

- Source: https://appshunter.io/ios/app/nmeasail/id610785368 (this page in markdown: same URL + `.md`)
- Developer: [Sven Wilrodt](https://appshunter.io/developer/610785791)
- Category: Navigation, Sports
- Price: $12.99
- Age rating: 4+
- Requires: iOS 16 · 1 MB
- Languages: American English
- Released: 2013-03-30
- Data updated: 2026-08-27
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/nmeasail/id610785368/reviews.md

## What is NMEASail?

Your Reliable Marine Navigation Dashboard

Transform your iPhone or iPad into a dependable marine instrument display. NMEASail securely connects to your yacht’s network via NMEA 0183 or SignalK, delivering essential cruising data straight to your hands in real-time. NMEASail displays your most important navigation data on your iPhone or iPad, wherever you are on your boat. Whether you are navigating an offshore passage, fine-tuning your sail trim, or keeping an eye on surrounding traffic through the fog, NMEASail delivers precision engineering wrapped in a clean, legible interface built for the marine environment.



KEY FEATURES

Universal Network Connectivity
Plug and Play: Connect dependably to onboard WiFi multiplexers or networking gateways.
NMEA 0183 and SignalK: Full support for legacy NMEA via TCP/UDP alongside modern JSON data streams over SignalK WebSockets.
Auto-Discovery: Easily locate and link your connection ports using the built-in Subnet Scanner which safely identifies broadcasting marine networks.

Augmented Reality (AR) Navigation
See Through the Fog: NMEASail’s AR camera overlay projects AIS targets and compass alignments against the physical horizon.

Offline OpenSeaMap Integration
Marine Charts Anywhere: Access dependable depth contours, seamarks, and buoys overlaid securely on top of Native Maps.
Aggressive Caching: Browse your local sailing area while connected to the internet, and NMEASail will proactively cache the marine tiles for confident offshore, zero-signal navigation.
Vessel Tracking: Keep track of your path drawn smoothly across the chart, accompanied by a responsive radar-style compass scale.

Live AIS Tracking
Identify surrounding vessels directly on your dashboard Map or through the AR lens.
Retrieve instant details such as a target’s Ship Name, MMSI, Speed, and Course.
Filter targets radially up to 40 NM to minimize distraction in heavily congested shipping lanes.

Custom Yacht Polar Diagrams
Optimize Your Output: Import vessel-specific .txt or .csv polar curve telemetry directly into the application.
NMEASail processes these values into an interactive 3D table, applying accurate target speeds directly to your gauges to indicate real-time performance relative to your current wind angle.

Analog Instruments
Highly Legible Gauges: Crisp, meticulously designed analog dials measuring Wind Speed, Apparent/True Wind Angles, and Speed Over Ground.
Magnified Wind View: An intuitive pinch-to-zoom gesture on the wind dial isolates the close-hauled sector, granting the helmsman uncompromising steering resolution.
Simple Configuration: Tap any instrument face to cycle seamlessly between preferred measurement units (knots, km/h, m/s).

Day and Night Themes
Preserve your night vision on evening passages. Switch effortlessly between four distinct aesthetics: Dark, Solaris Light, Neon, and Dark Neon.
The interface dynamically rebuilds to ensure deep contrast and legibility, functioning perfectly under glaring midday sun or pitch-black shifts.

## Key features

- NMEA 0183 and SignalK connectivity
- Augmented Reality (AR) navigation with AIS overlay
- Offline OpenSeaMap integration with aggressive caching
- Live AIS tracking with vessel details
- Custom yacht polar diagrams for performance optimization
- Legible analog instrument gauges
- Day and night themes

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/nmeasail/id610785368/reviews.md

### 5/5 — Wirklich überzeugend

*2019-05-25*

Ich habe fast alle NMEA Apps aus dem AppStore ausprobiert. Mir gefällt NMEASail optisch und funktionell am Besten. Wechsel von Windrichtung zu Lupe ist zB super gelöst.
Mein vYacht Router übersetzt leider Seatalk-1 nicht richtig in NMEA deswegen ging keine App richtig oder stürzten ab.
Bei NMEASail habe ich super Support bekommen und der Entwickler hat sie für meine fehlerhaften Datensätze angepasst. Ganz großes Kino. Vielen Dank

**Developer response:** Vielen Dank für deine Bewertung und dein Feedback. Die Anpassungen haben Spaß gemacht.

### 1/5 — Constantly crashed

*2018-10-17*

Every time, within a few seconds.  Deleted and reinstalled.  Same crashes.  Iphone x and iPad.

App developer asks why I wrote a review instead of speaking with support.  Answer: to help prevent others from wasting their money, time, or both on an a poorly built app.

**Developer response:** Why don't you talk to the support to solve the problem. I think that would be the better solution.  But I agree with you, the app should never crash.

Since your post a few days ago no other user has reported that the app crashes after launch.  Maybe it is because of your configuration. 
 
Please turn off your wlan and start the app.  Does it still crash now?

### 1/5 — Einfach und tut, was es soll.

*2015-06-16*

Leider etwas zu wenig Möglichkeiten zum Einstellen. Zum Beispiel Einheiten oder beim Wind wahre oder scheinbar. Schade ums Geld. App wird wieder gelöscht.

### 5/5 — Tala Willow

*2014-07-18*

Superb app. I would highly recommend this to any sailor who wants all his info in one place. It allows me to have all my data on one screen without buying an expensive chart plotter. Basically I have my nav and all my instrument readings on my ipad right in front of me - perfect. I also love the clear and colourful graphics. And cheap as well! Thanks very much Mr Wilrodt.

## Frequently asked questions about NMEASail

### What devices does NMEASail support?

NMEASail is compatible with iPhone, iPad, and iPod devices. It offers a seamless experience across Apple's mobile ecosystem.

### How does NMEASail connect to my boat's network?

NMEASail connects via NMEA 0183 or SignalK. It supports TCP/UDP for NMEA and SignalK WebSockets for modern data streams, easily discovering your network.

### Can I use NMEASail offline?

Yes, NMEASail features offline OpenSeaMap integration with aggressive caching. You can browse marine charts and navigate your local sailing area without an internet connection.

### Does NMEASail have ads?

No, NMEASail does not contain advertisements. It is a paid application designed for uninterrupted marine navigation.

### What kind of navigation data does NMEASail display?

NMEASail displays essential cruising data including AIS targets, compass alignments, depth contours, seamarks, buoys, vessel speed, course, and wind data.

### How does the Augmented Reality (AR) feature work in NMEASail?

The AR camera overlay projects AIS targets and compass alignments onto the physical horizon, allowing you to 'see through the fog' and identify surrounding vessels visually.

### What is the price of NMEASail?

NMEASail is available for a one-time purchase of $12.99. This grants you full access to all its marine navigation features.

### How often is NMEASail updated?

The latest version of NMEASail is 3.0.1, last updated on April 14, 2026. Updates typically occur to enhance features and ensure compatibility.

## Version history (last 5 releases)

### 3.0.1 — 2026-04-14

Now you can export your tracks as a GPX file.
Bugfix: The connection status and the support email address have been corrected.

### 3 — 2026-04-13

Augmented Reality (AR) Navigation, 
Live AIS Tracking,
OpenSeaMap overlay maps,
The app was developed from scratch.

### 2.24 — 2019-05-14

Bugfix: Incomplete NMEA sentences could lead a crash.

### 2.21 — 2018-08-08

Improved connection to SailTimerAPI.

### 2.20 — 2018-07-11

Compatible with iKommunicate.
Help view.
Another Polar sample file.
Improvements and bugfix: Windspeed value.

## More apps by Sven Wilrodt

- [SUP Track](https://appshunter.io/ios/app/sup-track/id1415702586)
- [Track the Sun](https://appshunter.io/ios/app/track-the-sun/id6758007308)

All apps by Sven Wilrodt: https://appshunter.io/developer/610785791

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*
